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The housing SQL data undergoes ETL (Extract, Transform, Load) processes to integrate and process the information. The data is extracted from various sources, transformed to ensure quality, and loaded into a SQL database. This enables data-driven decision-making in the real estate industry, providing insights into housing trends and property values.

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rohitblaze10/SQL_NASHVILE_HOUSING

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Nashville Housing Data Analysis

This project involves analyzing the Nashville housing market using SQL. The dataset, sourced from Kaggle, contains various attributes related to properties sold in Nashville.

Project Overview

The primary objective of this project is to clean and transform raw housing data to extract meaningful insights into Nashville's real estate trends. The process includes:

  1. Data Extraction: Importing the raw dataset into a SQL environment.
  2. Data Cleaning and Transformation: Addressing inconsistencies, handling missing values, and standardizing data formats.
  3. Data Loading: Storing the cleaned data into a structured SQL database for analysis.

Data Cleaning Steps

The data cleaning process involves several key steps:

  • Standardizing Date Formats: Converting sale dates into a consistent format.
  • Handling Missing Values: Filling in missing property addresses by cross-referencing ParcelID.
  • Splitting Address Components: Separating full addresses into distinct columns for street address, city, and state.
  • Normalizing Categorical Data: Ensuring consistency in categorical fields, such as converting 'Y'/'N' to 'Yes'/'No' in the SoldAsVacant column.

For detailed SQL queries and procedures used in the data cleaning process, refer to the Data_Cleaning.sql file in this repository.

Repository Contents

  • Nashville Housing Data (RAW DATA).xlsx: The original dataset containing raw housing data.
  • Data_Cleaning.sql: SQL script detailing the data cleaning and transformation steps applied to the dataset.

Getting Started

To replicate or build upon this analysis:

  1. Set Up Your Environment: Ensure you have a SQL database management system installed (e.g., Microsoft SQL Server).
  2. Import the Dataset: Load the Nashville Housing Data (RAW DATA).xlsx file into your SQL environment.
  3. Execute Data Cleaning Scripts: Run the SQL commands provided in Data_Cleaning.sql to clean and transform the data.
  4. Analyze the Data: Perform queries to extract insights, such as trends in property sales, average prices, and distribution of property types.

Acknowledgments

For any questions or further information, please refer to the issues section of this repository.

About

The housing SQL data undergoes ETL (Extract, Transform, Load) processes to integrate and process the information. The data is extracted from various sources, transformed to ensure quality, and loaded into a SQL database. This enables data-driven decision-making in the real estate industry, providing insights into housing trends and property values.

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